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  • Circuit board multi-pin dense pin IC removal method

    Hollow needle removal method.Take several medical needles numbered 8 to 12 hollow. When the PCBA copy board is used, the internal spring of the needle just fits the pins of the manifold. When disassembling, melt the pin solder with a soldering iron, timely cover the pin with a needle, then remove the soldering iron and rotate the pin, and wait unti...
    2020-9-24 14:6:8  admin   5
  • PCB surface treatment process

    1, hot air leveling (spray tin)Hot air leveling, also known as hot air solder leveling (commonly known as spray tin), is a process in which molten tin (lead) solder is applied to the surface of the PCB and is heated (compressed) by heating compressed air to form a layer that is resistant to copper oxidation. It also provides a good solderability co...
    2020-9-17 9:44:45  admin   6
  • PCB board design techniques for electromagnetic interference (EMI)

    There are many solutions to the EMI problem in today's PCB design techniques, such as EMI suppression coatings, suitable EMI suppression parts, and EMI simulation designs. LEAPPCB now briefly explains these techniques.1. Common mode EMI interference source (such as the voltage drop formed by the transient voltage formed in the power busbar acro...
    2020-9-15 14:43:50  admin   9
  • What are the process requirements for solder mask

    The role of the solder mask in controlling soldering defects during the reflow soldering process is important. When designing a PCB, the designer should try to minimize the space or air gap around the pad features.Although many process engineers prefer solder masks to separate all pad features on the board, the lead spacing and pad size of densely ...
    2020-9-11 10:29:54  admin   11
  • The difference between PCB positive and negative

    PCB positives and negatives are the opposite of the manufacturing process.The effect of the PCB positive film: wherever the line is drawn, the copper of the printed board is retained, and the place where no line is drawn is removed. The signal layer such as the top layer and the bottom layer is the positive film.The effect of the PCB negative film:...
    2020-9-9 11:11:58  admin   11
  • How to select the materials for PCB substrate

    1.EN/A (Electrolytic Ni/Au)The cost of EN/A (Electrolytic Ni/Au) is the highest among all the materials, but it is the most stable of all the materials used at present, and is also the most suitable for lead-free process. Especially in producing electronic products whose price is high or requires high degree of reliability, it is advisable to use t...
    2020-9-2 9:38:41  admin   8
  • China Backplanes PCBA Assembly Fabrication

    PCBA surface-mount connectors certainly offer many advantages, including reduced assembly costs, doubled density and improved high-speed performance integrity. However, the PCBA surface mount connector also contains some of the shortcomings that have been identified - from reliability issues such as connector shedding from the board to assembly pro...
    2020-8-31 15:46:39  admin   8
  • How to distinguish the front side and back side of the PCB

    Distinction between the front side and back side of single-layer PCBMany people will ask how to distinguish between the circuit side and the component side in a PCB? We should note that if there are only circuits for a Prototype PCB file and no other character, we should first confirm that whether these circuits should be drawn at the top level or ...
    2020-8-26 10:35:38  admin   26
  • How to gurrantee the Electronic products quality ?

    As the Electronic products are changing very fast ,and Every day there will have New electronic products will be developed and invented in any minutes , and Almost all the Electronic products will need to be updated in every year and every month.which means PCB Assembly demand & PCB And Assembly marketing will never fade.In Now Time . Electro...
    2020-8-20 10:32:58  admin   13
  • What is the Advantages of Low Volume PCB Assembly?

    Following advantages of low volume assembly of PCBs works in their favor:Small Quantity Assemblies: As the name suggests, this refers to small volume circuit board assemblies. These quantities may vary from 25- 1000 or sometimes 5000. Small volume assemblies are ideal for OEMs who are building new products. These small quantities will help them und...
    2020-8-19 16:28:14  admin   15
  • Shielding method in high speed PCB design

    The transmission rate of the high-speed pcb design and routing system is steadily increasing, and it also brings some kind of anti-interference vulnerability. The higher the frequency of transmitting information, the greater the sensitivity of the signal, and the weaker their energy. The wiring system at this time is more susceptible to interferenc...
    2020-8-14 15:9:41  admin   9
  • YOUR PCB DESIGN FEATURES SHOULD IMPROVE PRODUCTIVITY

    Whether you’re a new PCB designer or you’ve been active in the industry for many years, your new PCB design software platform should place all of your design features in a single interface. You shouldn’t have to buy buying basic features as addons that are confined in separate programs. Instead, you can focus on designing to your exact technical sp...
    2020-8-13 10:34:37  admin   8